Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Reexamination Certificate
2008-05-19
2009-10-13
Halpern, Mark (Department: 1791)
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
C162S052000, C162S055000, C162S056000, C428S402000, C428S532000, C428S535000
Reexamination Certificate
active
07601243
ABSTRACT:
System for conveying, mixing, leveling, and flaking dewatered pulp to produce pulp flakes suitable to be used in a dryer. The system produces a consistent flow rate of pulp and uniform pulp flakes in terms of pulp flake size and pulp flake moisture content. The system includes a rotating shaftless screw conveyor for mixing and conveying dewatered pulp. The system includes a belt conveyor. The pulp is deposited from the screw conveyor onto the moving belt conveyor through a chute. The system includes a rotary doctor. The pulp is leveled with the rotary doctor located above the belt conveyor to produce a substantially even rate of mass flow of pulp along a length of belt conveyor. Uniform and consistent quantities of pulp per unit time can then be fed from the belt conveyor to a pulp flaker that then translates into an even rate of pulp mass flow to the dryer.
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DeZutter Ramon C
Tveter Christopher Q
Crawford John M.
Halpern Mark
Weyerhaeuser NR Company
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